Foods & cuts · Lamb

Lamb shoulder

Lamb's long-cook joint. A working muscle full of connective tissue, which is the reason it is cheap and the reason it is good if you give it the hours.

What it is

Form: Bone-in joint
Typical weight: 1800–2600 g
Typical thickness: 80–140 mm
Cut: Lamb shoulder

Why it behaves as it does

Shoulder is to lamb what the shoulder is to a pig: the cut that is unpleasant cooked quickly and excellent cooked slowly, and for the same reason. It is laced with collagen, which is tough at the temperatures a leg is served at and becomes gelatine well above them — so a shoulder pulled at a leg's doneness has the worst of both, and one taken far past it falls apart. That makes it the lamb cut for a smoker or an indirect fire rather than a grill, and the one where finishing early and holding is easier than timing to the minute. The bone runs through it awkwardly and carving around it is easier once the meat has relaxed.

When is it done?

Food-safety endpoint

Food Standards Agency
The Food Standards Agency states that whole cuts of red meat such as steaks can be served pink, rare or bloody and will be safe to eat as long as the surface has been adequately seared. It gives no internal temperature for this case, so there is no figure here to cook to — the searing of the surface is the condition.
The rule and its source
In England, Wales and Northern Ireland the Food Standards Agency states that whole cuts of red meat such as steaks may be served pink, rare or bloody, on the condition that the surface has been adequately seared. No internal temperature is given for this case.
Well established
- Food Standards Agency — States this directly
  “red meat such as steaks can be served pink, rare or bloody and will be safe to eat as long as the surface has been adequately seared”
  What it covers:
  The document states its own reach: 'Applies to England, Northern Ireland and Wales'. Food Standards Scotland publishes separately and, as recorded separately, does not make this statement.
  The permission is CONDITIONAL and the condition is the whole rule: the surface must have been adequately seared, because on a whole cut the contamination is on the surface. A reading that drops the condition has changed the guidance into something else.
  Shape:
  No figure is given, and none is implied. This is a statement about a FORM rather than a temperature, which is why BBQHQ had to be able to record a rule about form at all before this could be held without inventing a number to hang it on.
  About this source · Original · retrieved 2026-08-14
USDA Food Safety and Inspection Service
In the United States, whole cuts of beef, pork, lamb and veal — steaks, chops and roasts — should reach 145 °F (63 °C), followed by a rest of at least three minutes before carving or eating.
- 63 °C (145 °F) — measured at the centre of the thickest part, away from bone and fat.
The rule and its source
In the United States, whole cuts of beef, pork, lamb and veal have a safe minimum internal temperature of 145 °F (63 °C), followed by a rest of at least three minutes.
Well established
- United States Department of Agriculture, Food Safety and Inspection Service — States this directly
  “Cook raw beef, pork, lamb and veal steaks, chops, and roasts to a minimum internal temperature of 145 °F ... allow meat to rest for at least three minutes”
  Form:
  Whole cuts only. Ground meats are covered by a separate, higher figure.
  The three-minute rest is part of the safety requirement, not only a quality step.
  How it was measured:
  As measured with a food thermometer before removing from the heat source.
  About this source · Original · retrieved 2026-08-13
Health Canada
In Canada, beef, veal and lamb pieces and whole cuts are given a safety figure for each doneness level: 63 °C (145 °F) medium-rare, 71 °C (160 °F) medium and 77 °C (170 °F) well done. Mechanically tenderized beef and veal should reach 63 °C and be turned at least twice during cooking.
- 63 °C (145 °F) — measured at the centre of the thickest part.
- 71 °C (160 °F) — measured at the centre of the thickest part.
- 77 °C (171 °F) — measured at the centre of the thickest part.
The rule and its source
In Canada, beef, veal and lamb pieces and whole cuts are given three safety figures by doneness: 63 °C medium-rare, 71 °C medium and 77 °C well done. Mechanically tenderized beef and veal are given 63 °C and must be turned at least twice during cooking.
Well established
- Health Canada — States this directly
  “Pieces and whole cuts, for example, steaks and roasts medium-rare 63 145 medium 71 160 well done 77 170”
  Shape:
  A safety chart that speaks in doneness, which is unusual and useful. Most authorities give one safety figure and leave doneness to the cook; Canada publishes the ladder, so a Canadian reader choosing medium-rare is choosing inside official guidance rather than against it.
  The mechanically tenderized row carries a handling instruction rather than only a temperature, which matches BBQHQ's existing claim that tenderised meat behaves like mince.
  About this source · Original · retrieved 2026-08-15
Tenderised meat is grouped with minced meat rather than with whole cuts, and must be cooked through when barbecued.
Well supported
- New Zealand Food Safety / Ministry for Primary Industries — States this directly
  New Zealand Food Safety advises that chicken, tenderised meat and minced meat products need to be barbecued until they are cooked through, over 75 °C all the way through.
  Form:
  Groups tenderised meat with mince rather than with whole cuts — direct support for treating mechanical tenderisation as an interior-contamination form.
  Stated specifically in the context of barbecuing.
  About this source · Original · retrieved 2026-08-13

When it goes wrong

It came out tough: The meat came out tough — 3 distinguishable causes.

Afterwards

Cooling, keeping and reheating what is left is general guidance for barbecue leftovers. Neither UK authority publishes anything specific to lamb shoulder, and BBQHQ does not invent a distinction they do not make.